National Weather Service United States Department of Commerce

Monitoring Tsunami Impacts Across the Pacific; Air Quality Concerns; Dangerous Heat; Critical Fire Weather for the West

Tsunami impacts continue for portions of the Pacific basin. Wildfire smoke causes unhealthy air in Midwest to Great Lakes. Heat dome spans Mississippi Valley to Mid-Atlantic with excessive heat warnings and advisories. Critical fire weather in Great Basin to Pacific Northwest (dry thunderstorms). Cold front spawns severe storms/heavy rain in Central U.S. today, shifts to East Coast Thursday. Read More >

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Last Map Update: Wed, Jul 30, 2025 at 12:08:24 pm PDT

Thunderstorms are expected to start in N Mono and Alpine counties today, as early as noon, before continuing northward through the Reno-Carson-Minden area and up to the OR border. Threats include frequent lightning, small hail, and heavy rain.

 

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